The Enduraplas 865 Gallon Vertical Rainwater Harvesting Tank (SKU 45451) is a forest-green polyethylene cistern built for above-ground rain capture, irrigation storage, and rural water reserve. It stands 75" tall on a 61" x 61" footprint (nominal 61" diameter body) and holds 865 gallons in a single vertical body. If you are matching this tank to a catchment area and rainfall, run the numbers through our Tank Sizing Calculator and Tank Sizing Guide before you commit to a pad size.
Will it work for your site?
This is a vertical storage design standing 75" high on a 61" x 61" footprint. Filled to capacity, 865 gallons of water weighs 7,214 lb, so the pad underneath has to carry that load evenly across the full base. Plan the foundation the way you would any tall above-ground poly tank of this height. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework for exactly this load case. The technical drawing on this page documents a single 1" NPT bulkhead outlet — confirm your inlet, overflow, and vent provisions before install rather than assuming ports the drawing does not show.
Fittings and install
The drawing calls out one bulkhead fitting, Type Bulkhead, 1" NPT. Every bulkhead is a gasketed penetration, so inspect and torque the gasket before first fill, and use PTFE tape or pipe dope on the NPT threads for a clean seal. That single 1" NPT port is your working outlet, so map your delivery, overflow, and first-flush plumbing around it up front. If you need additional ports or want to confirm the as-shipped fitting layout, call 866-418-1777 before you order.
Freight and delivery
This tank ships LTL freight because of its 75" height and 61" width, and freight is quoted separately to your delivery ZIP — it is not included in the list price. Get a live number through our Freight Cost Estimator or call 866-418-1777 and we will handle the quote. Know before delivery whether you need a liftgate or have a forklift on site, since that changes the delivery type.
The mistake to avoid
The most common misstep with a rainwater cistern this size is skipping first-flush and overflow planning. With a single 1" NPT bulkhead as your working outlet, map your inlet, overflow, and first-flush diversion before install, not after. Our write-ups on rainwater harvesting tank sizing by state and first-flush diverter sizing cover how to size that diversion correctly. If — and only if — you are adapting this tank for a rural fire-protection reserve, our NFPA 22 reservoir design guide covers the sizing discipline and freeze protection, but note a fire reserve needs larger suction connections than the single outlet documented here.
Ready to move on this tank? Pull a freight number to your ZIP with the Freight Cost Estimator or call 866-418-1777 to confirm delivery and lead time.
